在经济衰退期，制造业有很多人失业了。Many jobs in manufacturing were lost during the recession.许多小银行在经济衰退期破了产.Many small banks failed during the recession.结果, 惠普保持了全员就业, 顺利地熬过了衰退期.As a result, HP maintains full employment, smoothly through...
将聚酯, 聚已酸乙稀酯从反应器中拿出来.The polyester , polythylene adipate, was removed from the reactor.那些催化剂用于小型管式反应器.Those catalysts are used in small tubular reactors.可用一组间歇式生物反应器.A series of batch biological reactors are used....